Are there any health issues I should consider?

Customers with serious neck, back, or joint injuries or chronic heart problems should use their own discretion about their capabilities to safely participate in this activity. It is STRONGLY RECOMMENDED that anyone with who has had recent surgery, especially on ankles, knees or their back, not participate in this tour. Although we try to always make customers comfortable both physically and mentally, some degree of impact on joints or some degree of customer anxiety about zipping is unavoidable.